Details Protection class S3 SRC in accordance with EN ISO 20345:2011Non-slip outsole, penetration-resistant steel midsole, oil and petrol resistant, water-resistant upperSturdy steel toe cap, stabilising heel cap, material-protecting scuffcapSturdy water-repellent leather upper Uvex Quatro Pro – a "workhorse" for tough jobsSturdy, modern safety boots and safety shoes with extra-wide fit and sturdy, water-repellent upper for tough outside jobs, for example in the construction industry. The particularly soft midsole and solid PUR outsole guarantee excellent comfort. Uvex Quatro Pro safety shoes feature particularly deep non-slip tread, an injection-moulded scuffcap and support in the arch area. General features sturdy, modern S3 safety boot with extra-wide fit smooth-running, dirt-resistant lacing system suitable for orthopaedic adjustments and insoles from uvex medicare not for working with electrical live parts colour: black available in sizes: 11 available in sizes: 38 to 50  Protection features protection class S3 in accordance with EN ISO 20345:2011 with additional marking for excellent slip resistance (SRC) highly resistant, water-repellent leather upper with foamed scuffcap for additional protection of the material outdoor sole design provides a high level of stability with a heel brace, support in the arch area and a rough, non-slip and self-cleaning tread reliable protection for people and material: penetration-resistant steel midsole, steel toe cap and the stabilising uvex anti-twist heel cap to prevent ankle twisting  Comfort features ideal foot climate constantly maintained thanks to uvex climazone: breathable textile lining and comfortable climatic insole with a moisture transport system soft padding on collar and padded dust tongue anti-static uvex 3D hydroflex® foam insole for optimal shock absorption around heel and forefoot Uvex 8401 Quatro Pro Black S3 SRC Lace-Up Safety Boot